Passenger and Light Truck Wheel Step - Provides quick, easy access to your vehicle's roof for loading/unloading cargo. Fits passenger and light trucks. Installs in seconds. Adjusts to fit 14 in. to 20 in. wheel sizes. 300 pound capacity. Non-skid platform surface. Two-year warranty. Vertical Step Adjustment Range: 2-1/4” to 11-1/2” from top of frame to step, in 2” increments Tire Width Range: 9” to 13-1/2”, in 1-1/8” increments Distance Between Rails: 19-3/4” Step Size: 7” x 21-1/2” Fits wheel sizes: 14" to 20" The Tabs Overview This product can expose you to chemicals including TITANIUM DIOXI